It's smaller than an aspirin but its eight tiny pages contain an enormous literary treasure.

The book is "Our Father," written in six languages, and has an unknown origin. Bound in leather with gold trim, it is the star of Lima's National Library."This is one of the 12 volumes that exist in the world," said Irma Garcia, research director of the 167-year-old library. A wealthy Peruvian, Pedro Ugarteche, bought the book in Europe and donated it to the library.